<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
       .box{
            width:100px;
            height:100px;
           background-color: rgb(49, 46, 46);
            margin: 100px auto;
            display: flex;
            justify-content:space-around;
            flex-direction:column ;
            /* align-items: center ; */
           
        }
       .box>div{
        width:20px;
            height:20px;
            background-color: red;
            border-radius: 50%;
            align-self:center;
          
       }

    </style>
</head>
<body>
    <div class="box">
        <div class="one"></div>
        <div class="two"></div>
    </div>
</body>
</html>